// Station · 12d ago · STALE · HARD STALE

KOTM

Ottumwa Regional Airport

CAT LIFR

WIND 330° / 29 kt G39

VIS 0.75 SM

CEILING BKN at 300 ft

T/Td 21.1°C / 21.1°C

ALTIM 29.92 inHg

WX +TSRA BR

ELEV 845 FT

41.1064°N / 92.4498°W

LOCATION · Ottumwa, US

WIND

330°29 kt

KOTM · 845 FT

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

330°/29G39

VIS

0.75 SM

CEILING

BKN003

LAYERS

BKN003 OVC008

T / Td

21 / 21

ALTIM

29.92"

// Interpretation

LIFR — ceiling 300 ft. Strong winds at 330°/29 kt, gusting 39, visibility 0.75 SM, broken at 300 ft, and overcast at 800 ft. Reported weather: thunderstorm with heavy rain and mist (+TSRA BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

SPECI KOTM 131356Z AUTO 33029G39KT 3/4SM +TSRA BR BKN003 OVC008 21/21 A2992 RMK AO2 PK WND 31039/1354 LTG DSNT ALQDS PRESRR P0019 T02110211

KOTM · day 13 at 13:56 UTC · wind from 330° at 29 kt, gusts to 39 kt · visibility 0.75 SM · broken layer at 300 ft · overcast at 800 ft · temp 21°C / dewpoint 21°C · altimeter 29.92" Hg · weather: thunderstorm with heavy rain and mist (+TSRA BR) · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 330° @ 29 ktG39

2 USABLE · 2 AVOID · 1 CAUTION

WIND

330°29G39 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

31★ HDG 310° H27 kt X10 kt RIGHT PRIMARY · 6,001'

04 HDG 040° H10 kt X27 kt LEFT ⚠ HIGH XW · 69%

TAILWIND ENDS · AVOID 2 ends

22 HDG 220° T10 kt X27 kt RIGHT —

13 HDG 130° T27 kt X10 kt LEFT —

Pattern altitude: 1,845 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +8°C

1,800FT

+955 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV845 FT OAT+21°C ISA DELTA+8°C PRESSURE ALT842 FT

// Performance equivalent Operating here right now feels like operating at KISB (Sibley Municipal Airport, Sibley, elev 1,538 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-5%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

OVC008

Overcast · base 800 ft AGL · 8 oktas

BKN003

Broken · base 300 ft AGL · ~5–7 oktas

// Computed

CEILING300 ft AGL HIGHEST LAYER800 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL11,502 ft VFR MARGIN-2,700 ft

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:30ZSUNRISE

18:13ZSOLAR NOON

00:56ZSUNSET

01:24ZCIVIL END

CURRENT16:17Z DAYLIGHT REMAINING8h 38m VFR NIGHT BEGINS01:24Z (9h 07m) DAY LENGTH13h 25m

Waxing Gibbous

ILLUMINATION94% MOONRISE21:33Z MOONSET10:58Z FULL MOON IN2 days

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// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

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